parens

Salve magna parens, (Hail, mighty parent) is from Virgil's Georgics, ii.

At ille iussis maternis parens, ad locum ubi uitulus erat commestus accedens, ossa eius collegit et uitulum resuscitauit.

My first thought in any trouble, difficulty, or perplexity would be: "Salve sancta Parens!"

Brevis voluptas mox doloris est parens—Short-lived 35 pleasure is the parent of pain.

Virginity, the mother of great things, magna parens rerum, holds in her fair white hands the keys of the upper worlds.